답안 #39874

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
39874 2018-01-23T07:48:51 Z aome Fireworks (APIO16_fireworks) C++14
100 / 100
289 ms 77056 KB
#include <bits/stdc++.h>
using namespace std;

const int N = 300005;

struct Node {
	long long startingValue;
	long long startingSlope;
	priority_queue<long long> pq;
};

int n, m, c[N], p[N];
vector<int> G[N];
Node a[N];

void dfs(int u) {
	if (u > n) return;
	int mx = 0;
	for (auto v : G[u]) {
		dfs(v);
		if (!mx || a[v].pq.size() > a[mx].pq.size()) mx = v;
	}
	swap(a[mx], a[u]);
	for (auto v : G[u]) {
		if (v == mx) continue;
		while (a[v].pq.size()) {
			a[u].pq.push(a[v].pq.top()), a[v].pq.pop();
		}
		a[u].startingValue += a[v].startingValue;
		a[u].startingSlope += a[v].startingSlope;
	}
	while (a[u].startingSlope + a[u].pq.size() > 1) a[u].pq.pop();
	long long x1 = a[u].pq.top(); a[u].pq.pop();
	long long x0 = a[u].pq.top(); a[u].pq.pop();
	a[u].startingValue += c[u];
	a[u].pq.push(x0 + c[u]), a[u].pq.push(x1 + c[u]);
}

int main() {
	ios::sync_with_stdio(false);
	cin >> n >> m;
	for (int i = 2; i <= n + m; ++i) {
		cin >> p[i] >> c[i];
		G[p[i]].push_back(i);
	}
	for (int i = n + 1; i <= n + m; ++i) {
		a[i].startingSlope = -1;
		a[i].startingValue = c[i];
		a[i].pq.push(c[i]), a[i].pq.push(c[i]);
	}
	dfs(1);
	vector<long long> v;
	while (a[1].pq.size()) {
		v.push_back(a[1].pq.top()), a[1].pq.pop();
	}
	reverse(v.begin(), v.end());
	long long cur = 0;
	long long curSlope = a[1].startingSlope;
	long long res = a[1].startingValue;
	// cout << curSlope << ' ' << res << '\n';
	// for (auto i : v) cout << i << ' '; cout << '\n';
	for (int i = 0; i < v.size(); ++i) {
		res += (v[i] - cur) * curSlope, curSlope++, cur = v[i];
	}
	cout << res;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:62:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < v.size(); ++i) {
                    ^
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 25620 KB Output is correct
2 Correct 6 ms 25620 KB Output is correct
3 Correct 6 ms 25620 KB Output is correct
4 Correct 0 ms 25620 KB Output is correct
5 Correct 4 ms 25620 KB Output is correct
6 Correct 6 ms 25620 KB Output is correct
7 Correct 13 ms 25620 KB Output is correct
8 Correct 7 ms 25620 KB Output is correct
9 Correct 3 ms 25620 KB Output is correct
10 Correct 3 ms 25620 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 25620 KB Output is correct
2 Correct 6 ms 25620 KB Output is correct
3 Correct 0 ms 25620 KB Output is correct
4 Correct 7 ms 25620 KB Output is correct
5 Correct 6 ms 25620 KB Output is correct
6 Correct 7 ms 25620 KB Output is correct
7 Correct 3 ms 25620 KB Output is correct
8 Correct 6 ms 25620 KB Output is correct
9 Correct 3 ms 25620 KB Output is correct
10 Correct 3 ms 25620 KB Output is correct
11 Correct 3 ms 25620 KB Output is correct
12 Correct 3 ms 25620 KB Output is correct
13 Correct 3 ms 25620 KB Output is correct
14 Correct 5 ms 25620 KB Output is correct
15 Correct 9 ms 25620 KB Output is correct
16 Correct 6 ms 25620 KB Output is correct
17 Correct 7 ms 25620 KB Output is correct
18 Correct 6 ms 25620 KB Output is correct
19 Correct 3 ms 25620 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 25620 KB Output is correct
2 Correct 6 ms 25620 KB Output is correct
3 Correct 6 ms 25620 KB Output is correct
4 Correct 0 ms 25620 KB Output is correct
5 Correct 4 ms 25620 KB Output is correct
6 Correct 6 ms 25620 KB Output is correct
7 Correct 13 ms 25620 KB Output is correct
8 Correct 7 ms 25620 KB Output is correct
9 Correct 3 ms 25620 KB Output is correct
10 Correct 3 ms 25620 KB Output is correct
11 Correct 4 ms 25620 KB Output is correct
12 Correct 6 ms 25620 KB Output is correct
13 Correct 0 ms 25620 KB Output is correct
14 Correct 7 ms 25620 KB Output is correct
15 Correct 6 ms 25620 KB Output is correct
16 Correct 7 ms 25620 KB Output is correct
17 Correct 3 ms 25620 KB Output is correct
18 Correct 6 ms 25620 KB Output is correct
19 Correct 3 ms 25620 KB Output is correct
20 Correct 3 ms 25620 KB Output is correct
21 Correct 3 ms 25620 KB Output is correct
22 Correct 3 ms 25620 KB Output is correct
23 Correct 3 ms 25620 KB Output is correct
24 Correct 5 ms 25620 KB Output is correct
25 Correct 9 ms 25620 KB Output is correct
26 Correct 6 ms 25620 KB Output is correct
27 Correct 7 ms 25620 KB Output is correct
28 Correct 6 ms 25620 KB Output is correct
29 Correct 3 ms 25620 KB Output is correct
30 Correct 2 ms 25620 KB Output is correct
31 Correct 6 ms 25620 KB Output is correct
32 Correct 10 ms 25620 KB Output is correct
33 Correct 3 ms 25752 KB Output is correct
34 Correct 5 ms 25752 KB Output is correct
35 Correct 3 ms 25752 KB Output is correct
36 Correct 3 ms 25752 KB Output is correct
37 Correct 5 ms 25888 KB Output is correct
38 Correct 6 ms 25884 KB Output is correct
39 Correct 9 ms 25884 KB Output is correct
40 Correct 9 ms 26328 KB Output is correct
41 Correct 5 ms 26328 KB Output is correct
42 Correct 7 ms 25752 KB Output is correct
43 Correct 5 ms 26128 KB Output is correct
44 Correct 9 ms 26008 KB Output is correct
45 Correct 9 ms 26012 KB Output is correct
46 Correct 11 ms 26064 KB Output is correct
47 Correct 0 ms 26048 KB Output is correct
48 Correct 0 ms 26052 KB Output is correct
49 Correct 3 ms 26088 KB Output is correct
50 Correct 6 ms 25936 KB Output is correct
51 Correct 7 ms 25936 KB Output is correct
52 Correct 15 ms 26060 KB Output is correct
53 Correct 3 ms 26036 KB Output is correct
54 Correct 12 ms 26036 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 25620 KB Output is correct
2 Correct 6 ms 25620 KB Output is correct
3 Correct 6 ms 25620 KB Output is correct
4 Correct 0 ms 25620 KB Output is correct
5 Correct 4 ms 25620 KB Output is correct
6 Correct 6 ms 25620 KB Output is correct
7 Correct 13 ms 25620 KB Output is correct
8 Correct 7 ms 25620 KB Output is correct
9 Correct 3 ms 25620 KB Output is correct
10 Correct 3 ms 25620 KB Output is correct
11 Correct 4 ms 25620 KB Output is correct
12 Correct 6 ms 25620 KB Output is correct
13 Correct 0 ms 25620 KB Output is correct
14 Correct 7 ms 25620 KB Output is correct
15 Correct 6 ms 25620 KB Output is correct
16 Correct 7 ms 25620 KB Output is correct
17 Correct 3 ms 25620 KB Output is correct
18 Correct 6 ms 25620 KB Output is correct
19 Correct 3 ms 25620 KB Output is correct
20 Correct 3 ms 25620 KB Output is correct
21 Correct 3 ms 25620 KB Output is correct
22 Correct 3 ms 25620 KB Output is correct
23 Correct 3 ms 25620 KB Output is correct
24 Correct 5 ms 25620 KB Output is correct
25 Correct 9 ms 25620 KB Output is correct
26 Correct 6 ms 25620 KB Output is correct
27 Correct 7 ms 25620 KB Output is correct
28 Correct 6 ms 25620 KB Output is correct
29 Correct 3 ms 25620 KB Output is correct
30 Correct 2 ms 25620 KB Output is correct
31 Correct 6 ms 25620 KB Output is correct
32 Correct 10 ms 25620 KB Output is correct
33 Correct 3 ms 25752 KB Output is correct
34 Correct 5 ms 25752 KB Output is correct
35 Correct 3 ms 25752 KB Output is correct
36 Correct 3 ms 25752 KB Output is correct
37 Correct 5 ms 25888 KB Output is correct
38 Correct 6 ms 25884 KB Output is correct
39 Correct 9 ms 25884 KB Output is correct
40 Correct 9 ms 26328 KB Output is correct
41 Correct 5 ms 26328 KB Output is correct
42 Correct 7 ms 25752 KB Output is correct
43 Correct 5 ms 26128 KB Output is correct
44 Correct 9 ms 26008 KB Output is correct
45 Correct 9 ms 26012 KB Output is correct
46 Correct 11 ms 26064 KB Output is correct
47 Correct 0 ms 26048 KB Output is correct
48 Correct 0 ms 26052 KB Output is correct
49 Correct 3 ms 26088 KB Output is correct
50 Correct 6 ms 25936 KB Output is correct
51 Correct 7 ms 25936 KB Output is correct
52 Correct 15 ms 26060 KB Output is correct
53 Correct 3 ms 26036 KB Output is correct
54 Correct 12 ms 26036 KB Output is correct
55 Correct 11 ms 26316 KB Output is correct
56 Correct 46 ms 28628 KB Output is correct
57 Correct 72 ms 30180 KB Output is correct
58 Correct 95 ms 32152 KB Output is correct
59 Correct 136 ms 33848 KB Output is correct
60 Correct 182 ms 35396 KB Output is correct
61 Correct 216 ms 38224 KB Output is correct
62 Correct 236 ms 39352 KB Output is correct
63 Correct 289 ms 41436 KB Output is correct
64 Correct 285 ms 41812 KB Output is correct
65 Correct 104 ms 77056 KB Output is correct
66 Correct 117 ms 77056 KB Output is correct
67 Correct 161 ms 34992 KB Output is correct
68 Correct 189 ms 62144 KB Output is correct
69 Correct 222 ms 58740 KB Output is correct
70 Correct 253 ms 58740 KB Output is correct
71 Correct 236 ms 58992 KB Output is correct
72 Correct 232 ms 58800 KB Output is correct
73 Correct 213 ms 55184 KB Output is correct
74 Correct 228 ms 55392 KB Output is correct
75 Correct 221 ms 55856 KB Output is correct
76 Correct 233 ms 55904 KB Output is correct
77 Correct 241 ms 55316 KB Output is correct
78 Correct 212 ms 53688 KB Output is correct
79 Correct 227 ms 53468 KB Output is correct